Carbon nanotube growth from titanium-cobalt bimetallic particles as a catalyst

Shintaro Sato, Akio Kawabata, Daiyu Kondo, Mizuhisa Nihei, Yuji Awano

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Bimetallic particles of Ti and Co have been used to grow multi-walled carbon nanotubes (MWNTs) to study the effects of Ti on the growth. The particles were generated by laser ablation and size-classified with a differential mobility analyzer. Diameter-controlled MWNTs were grown on a silicon substrate from 5-nm particles by thermal chemical vapor deposition using acetylene at 510 and 610°C. Titanium has been found to enhance the MWNT growth significantly. There is an optimum Ti fraction for the growth, as confirmed by evaluation of the growth probabilities of MWNTs. A possible mechanism of growth enhancement by Ti is discussed.

Original languageEnglish
Pages (from-to)149-154
Number of pages6
JournalChemical Physics Letters
Volume402
Issue number1-3
DOIs
Publication statusPublished - 2005 Jan 24
Externally publishedYes

Fingerprint

Carbon Nanotubes
Cobalt
Titanium
cobalt
titanium
carbon nanotubes
catalysts
Catalysts
Acetylene
Silicon
Laser ablation
acetylene
laser ablation
Chemical vapor deposition
analyzers
vapor deposition
augmentation
evaluation
silicon
Substrates

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces
  • Condensed Matter Physics

Cite this

Carbon nanotube growth from titanium-cobalt bimetallic particles as a catalyst. / Sato, Shintaro; Kawabata, Akio; Kondo, Daiyu; Nihei, Mizuhisa; Awano, Yuji.

In: Chemical Physics Letters, Vol. 402, No. 1-3, 24.01.2005, p. 149-154.

Research output: Contribution to journalArticle

Sato, Shintaro ; Kawabata, Akio ; Kondo, Daiyu ; Nihei, Mizuhisa ; Awano, Yuji. / Carbon nanotube growth from titanium-cobalt bimetallic particles as a catalyst. In: Chemical Physics Letters. 2005 ; Vol. 402, No. 1-3. pp. 149-154.
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